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NeXtMidas Training
Working with Files
Plotting Files
Layers
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- Layers in a Plot:
- A layer is a data set rendered on a plot.
- There can be many layers on one plot.
- Layers can:
- Be Enabled/Disabled
- Be Added/Removed
- Have their characteristics (or attributes) changed
- A layer may constitute a set of homogenous points.
- For example: The midas file
cities.prm
contains a number of lat/lon points with city names.
- The elements within a layer tend to have a number of attributes, like color, in common.
- NeXtMidas has a number of classes for handling layers, here are just a few:
Layer Class | Description |
Layer1D | For Type 1000 Midas Blue files (TYPE=Line ) |
Layer2D | For Type 2000 Midas Blue files (TYPE=Raster ) |
LayerGeo | For geolocation related information |
LayerImage | For image files: gif,jpeg |
LayerMulti | For Type 3000 Midas Blue files with multiple Y traces |
LayerPoly | For Type 1999 Midas Blue files (e.g. world.prm ) |
LayerShape | For shape (.shp ) files |
LayerT5 | For special Type 5000 Midas Blue files |
LayerXY | For Type 3000 Midas Blue files (scatter plots) |
- You can even add you own layers if you like. See the
LAYER explain file for details.
- See
LAYER explain file for a complete list of layers.
X-Midas Users Take Note: |
LayerGeo and LayerT5 perform many of the functions embedded
into the X-Midas XGEOPLOT command.
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